Hickory Tussock Moth

Dear Bug Man, My son found some Hickory Tussock caterpillars last fall, which he put in his "bug box". We fed them and provided mulch, etc. One died, but the other survived and has been in its cocoon all winter. I have read they emerge in May or June. Is there any special care once they emerge and how soon should it be let out? And do these moths cause alot of damage to trees? Thank you, Judy

Dear Judy, The Hickory Tussock Moth, Halisidota caryae, rarely is plentiful enough to do major damage to the Hickory trees it feeds upon. The adults, like many Tiger Moths, do not feed as adults. You can release the moth after its wings have fully expanded. It will fly when it is ready.